Polar-fluoropolymer blends with tailored nanostructures for high energy density low loss capacitor applications

Shan Wu, Minren Lin, S. G. Lu, Lei Zhu, Q. M. Zhang

Research output: Contribution to journalArticlepeer-review

60 Scopus citations

Abstract

A polar-fluoropolymer blend consisting of a high energy density poly(vinylidene fluoride-chlorotrifluoroethylene) (P(VDF-CTFE)) and a low dielectric loss poly(ethylene-chlorotrifluoroethylene) (ECTFE) was developed. Both the blend and crosslinked blend films exhibit a dielectric constant of 7 and low loss (∼1%), as expected from the classical composite theory. Moreover, introducing crosslinking in the blends can lead to a marked reduction of losses in blend films at high fields while maintaining a high energy density. At 250 MV/m, a loss of 3% can be achieved in the crosslinked blend compared with 7% loss in pure blend, which is already much below that of neat P(VDF-CTFE) (∼35%).

Original languageEnglish (US)
Article number132901
JournalApplied Physics Letters
Volume99
Issue number13
DOIs
StatePublished - Sep 26 2011

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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